package com.itheima.reggie.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.itheima.reggie.common.CustomException;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Dish;
import com.itheima.reggie.entity.Setmeal;
import com.itheima.reggie.mapper.CategoryMapper;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.DishService;
import com.itheima.reggie.service.SetmealService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
@Slf4j
public class CategoryServiceImpl extends ServiceImpl<CategoryMapper, Category> implements CategoryService {
    @Autowired
    private SetmealService setmealService;
    @Autowired
    private DishService dishService;

    @Override
    public void deleteByIds(List<Long> ids) {
        for (Long id : ids) {
            LambdaQueryWrapper<Setmeal> setmealLambdaQueryWrapper = new LambdaQueryWrapper<>();
            setmealLambdaQueryWrapper.eq(Setmeal::getCategoryId, id);
            int count1 = setmealService.count(setmealLambdaQueryWrapper);
            if (count1 > 0) {
                throw new CustomException("当前分类关联了套餐,无法删除");
            }

            LambdaQueryWrapper<Dish> dishLambdaQueryWrapper = new LambdaQueryWrapper<>();
            dishLambdaQueryWrapper.eq(Dish::getCategoryId, id);
            int count2 = dishService.count(dishLambdaQueryWrapper);
            if (count2 > 0) {
                throw new CustomException("当前分类关联了菜品,无法删除");
            }
            this.removeById(id);
        }
    }
}
